POSTCARD: "Squirrel House, Glen Oak Park, Peoria, Ill." divided back Made in Germany for W. G. Putnam, Peoria, Ill. Postmarked 1908

POSTCARD: "The Squirrel House, Glen Oak Park, Peoria, Ill." divided back Made in Germany Postmarked 1909

POSTCARD: "Squirrel House in Winter Time, Glen Oak Park - Published by C. R. Gibson, Peoria, Ill." divided back Postmarked 1911

POSTCARD: "13508 Elk, Glen Oak Park, Peoria, Ill." divided back F. M. Kirby Co. Made in U.S.A. Postmarked 1909

POSTCARD: "13513 Elk Family, Glen Oak Park, Peoria, Ill." divided back F. M. Kirby Co. Made in U.S.A.

POSTCARD: "Playful Bears at Glen Oak Park, Peoria, Ill. - 59" divided back 4356N Published by Hartman Bros. News Agency, Peoria, Ill. Photo by Arrow Advertising A "Natural Color Card" Made by E. C. Kropp Co, Milwaukee, Wis. (CIY)

POSTCARD: Lion, Tiger and Leopard Enclosures divided back 5C-K1715 PK.19 Distributed by Hartman Bros, Peoria, Ill. Curteichcolor Art-Creation from Color Transparencies

POSTCARD: Lion, Tiger and Leopard Enclosures Glen Oak Zoo, Peoria, Illinois divided back PK. 38 Distributed by Hartman Bros., Peoria, Ill. Curteichcolor 3-D Natural Color Reproduction 0DK-1291

POSTCARD: Dona the Baby elephant divided back 310446 Tetricolor Card Published by James Tetirick, K.C. Mo.